Patrick mcgunnigle



(No Model.)

P. MOGUNNIGLR MOUTH PIECE FOR SPEAKING TUBES.

No. 374,746. Patented Dec. 13, 1887.

fiwezafor UNITED STATES PATENT OFFICE.

PATRICK MOGUNNIGLE, OF NEWV YORK, N. Y.

MOUTH-PIECE FOR SPEAKING-TUBES.

SPECIFICATION forming part of Lettels Patent No. 374,746, dated December 13, 1887.

Application filed March 13, 1886. Serial No. 195,158. (No model.)

To all whom it may concern:

- and I do hereby declare that the following is showing the whistle closed.

a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, makinga partof this specification, and to the letters and figures of reference marked thereon.

Figure 1 is a perspective view of my new and improved speaking -tube mouth-piece, Fig. 2 is a front elevation of the same, showing the whistle open. Fig. 3 is a sectional plan view reversed, the section being taken just below the whistle and shaft thereof in the position of Fig. 1. Fig. 4 is a similar view showing the whistle closed, and Fig. 5 is a sectional elevation showing the construction of the parts of the frame of the mouth-piece.

The invention will first be described in connection with the drawings, and then pointed out in the claim.

The mouth-piece is composed of the two main parts A A, connected together back of the bell a bya lap-joint, the front part, A, be-

ing slots or openings, 0 c, on both sides .ofthe mouth-piece and exactly in line with the center or diameter thereof. These openings are to receive and form journals for the shaft F of the whistle B, which shaft is exactly central to the whistle. In this manner the shaft and whistle have their axis at the diameter of the mouth-piece, and thus avoid hinges and other details of construction incident to the ordinary form of mouth-piece.

The indicator E is pivoted or hinged to the outer surface of the whistle, as shown clearly in the drawings, and the handle 0 to the shaft of the whistle counterweights the whistle, so that it normally closes the mouth-piece, as shown in Fig. 1.

Having thus described my invention, whatI claim as new, and desire to secure by Letters Patent, is

A mouth-piece for speaking-tubes, composed of the two parts A A, formed with diametrical openings 0 c, in combination with the shaft F, supported in said openings, and whistle B, attached centrally to the shaft F, substantially as described.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

PATRICK MOGUN N IGLE.

\Vitnesses:

RICHARD MAYO, JAMES S. MoGUNNIeLE. 

